基于多球域波叠加法的 PNAH 正则化方法的仿真研究

The principle of sound field reconstruction about patch near-field acoustic holography based on wave superposition approach of multiple ball fields is explained in detail . Because the principle of sound field reconstruction is an inverse problem ,in order to reduce the impact of the errors on the reconstruction results ,a regularization procedure must be used .Based on this theory ,under the condition of adding Gaussian white noise ,sound field reconstruction adopts the method integrating L-curve with Tikhonov regularization method . Through theoretical analysis and numerical simulation ,the availability of this method is testified .